[…]It comes with a lot of new features and fixes, such as better C++ support, compatibility with the most recent LLVM versions (including LLVM 8), integration of CVC4 and Yices 2, better path merging functionality, improved support for vector instructions, a new categorized help menu and more![…]
http://mailman.ic.ac.uk/pipermail/klee-dev/2019-March/001890.html